Revert "Merge branch 'case-integrity' into staging"

This reverts commit 9c88dd18742829bcfddbfe435e5b35fd59553017, reversing
changes made to 404edf5c13a3762fce36778a747a0036dfda0da4.

Conflicts:
	corehq/apps/cleanup/management/commands/check_case_integrity.py